450326125021 has 4 divisors (see below), whose sum is σ = 452814114844. Its totient is φ = 447838135200.

The previous prime is 450326124979. The next prime is 450326125031. The reversal of 450326125021 is 120521623054.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 149297232100 + 301028892921 = 386390^2 + 548661^2 .

It is a cyclic number.

It is not a de Polignac number, because 450326125021 - 2¹³ = 450326116829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450326125031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1243994640 + ... + 1243995001.

It is an arithmetic number, because the mean of its divisors is an integer number (113203528711).

Almost surely, 2^450326125021 is an apocalyptic number.

It is an amenable number.

450326125021 is a deficient number, since it is larger than the sum of its proper divisors (2487989823).

450326125021 is a wasteful number, since it uses less digits than its factorization.

450326125021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2487989822.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 450326125021 its reverse (120521623054), we get a palindrome (570847748075).

The spelling of 450326125021 in words is "four hundred fifty billion, three hundred twenty-six million, one hundred twenty-five thousand, twenty-one".